T08 · Insecure Dependencies
- Location
SKILL.md:216- Finding
Unpinned Third-Party CLI Dependencies Create a Supply-Chain Risk
- Content
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Vulnerability Details
File Location:
SKILL.md, lines 216–219
Vulnerability Type:T08: Insecure Dependencies
Risk Level: MediumComplete Code Snippet:
bash # Dependency instructions npm install -g sonos-cli # ... # Alternatively, use the Python version pip install soco-cliA related dependency declaration appears at line 320:
text | soco | Python library | Required for Python version | pip install soco |Technical Analysis
The skill directs users or agents to install third-party packages without fixed versions, integrity hashes, lockfiles, canonical repository links, or publisher verification. Package managers will therefore resolve mutable versions from their configured registries at installation time. The npm command also installs the package globally, exposing its executables system-wide and potentially running package lifecycle scripts with the installing user's privileges.
The Python instructions are inconsistent: the installation example uses
soco-cli, while the dependency table identifies and installssoco. This ambiguity increases the chance of installing an unintended or similarly named package.No evidence establishes that the named packages are currently malicious. The confirmed weakness is that the installation process lacks controls against package compromise, malicious future releases, registry substitution, dependency confusion, or operator error.
Attack Path
- An attacker compromises the referenced package, one of its transitive dependencies, or the relevant registry account; alternatively, a user selects an unintended package because of the inconsistent Python package names.
- A user invokes the skill on a system where the required CLI is unavailable.
- The agent or user follows the documented unpinned
npmorpipinstallation command. - The package manager resolves the current mutable package release without verifying a project-speci ...[truncated 887 chars]
- Remediation
View remediation
Remediation Suggestions
- Pin each dependency to an exact, reviewed version rather than allowing the latest registry release.
- Provide the canonical package registry page, publisher identity, and source repository for every dependency.
- Use integrity verification:
- For Python, publish a requirements file with exact versions and
--hashentries, then install withpip install --require-hashes. - For Node.js, use a local project installation and a committed lockfile with
npm ciinstead of a global installation.
- For Python, publish a requirements file with exact versions and
- Avoid
npm install -g; install into an isolated project directory, container, or dedicated low-privilege environment. - Disable npm lifecycle scripts during installation where compatible, review package contents, and explicitly enable only required scripts.
- Resolve the discrepancy between
soco-cliandsoco, documenting exactly which package supplies the claimed commands. - Review direct and transitive dependencies with package-manager audit and provenance tooling before approving upgrades.
- Remove unused
readorwritetool permissions if they are not required, reducing the impact of a compromised dependency.
